The Drum (1938)
Set in the India of the British Raj, the evil and untrustworthy Prince Guhl (Raymond Massey) plans to wipe out the British troops as they enjoy the hospitality of Guhl's spacious palace. It's up to the loyal young Prince Azim (Sabu) to warn the troops of Guhl's treachery by tapping out a message on his drum.
Directed by: Zoltan Korda
Starring: Sabu, Raymond Massey, Valerie Hobson, Roger Livesey, David Tree, Desmond Tester
Links: United Artists, IMDb, Movie posters, Movie stills